"To account for this, and other phenomena of Memory, by intermediate causes, many authors, both antient and modern, were fain to suppose, that every thing perceived by us, whether a thought of the mind, or an external object, every thing, in a word, that we remember, makes upon the brain a certai...

"When the brain itself is disordered, by disease, by drunkenness, or by other accidents, these philosophers are of opinion, that the impressions are disfigured, or instantly erased, or not at all received; in which case, there is either no remembrance, or a confused one."

"The human brain is a bodily substance; and sensible and permanent impressions made upon it must so far resemble those made on sand by the foot, or on wax by the seal, as to have certain shape, length, breadth, and deepness"

"Traders often revise their books; to see whether every thing be neat, and accurate, and in its proper place. Students, in like manner, should often revise their knowledge, or at least the more useful branches of it; renew those impressions on the Memory, which had begun to decay through length o...